Textile Fiber Rim Spoke Structure for Impact-Resistant Wheels
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Solution Overview
Problem
Rigid rim spokes deform irreversibly under heavy impact, leading to weakened strength and safety issues, necessitating frequent maintenance and increased costs.
Innovation Solution
A rim spoke made of a flexible textile fiber rope with mounting heads and nipples, where the ends of the spoke rope are fixedly sleeved and adhered into mounting holes, and the mounting holes are tapered to ensure a secure connection, enhancing impact resistance and preventing nut loosening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid material spokes are used, then strength is improved, but the spoke deforms irreversibly under heavy impact
Solution Approach 1:
The patent changes the material parameter from rigid (metal) to flexible (textile fiber), transforming the spoke's mechanical properties. This allows the spoke to maintain high strength while gaining the ability to flex and absorb impact forces without irreversible deformation, directly resolving the contradiction between strength and resistance to deformation.
Solution Approach 2:
The patent uses composite construction by braiding multiple textile fiber ropes together to form the spoke rope. This composite structure combines the strength of individual fibers with the flexibility of the braided configuration, enabling the spoke to withstand high tensions (6-8 kN) while maintaining flexibility to absorb impacts.
2Reliability
If textile fiber spoke rope is used, then flexibility and impact buffering are improved, but tension bearing capacity must be increased
Solution Approach 1:
The patent employs composite materials by braiding multiple high-strength textile fiber ropes into a single spoke rope. This composite structure achieves both flexibility for impact buffering and high tension bearing capacity (6-8 kN), as the combined strength of multiple fibers exceeds that of traditional single-material spokes.
Solution Approach 2:
The patent changes the material parameters of the spoke rope to achieve superior mechanical properties. The textile fiber material is selected and processed to have both high tensile strength and flexibility, allowing the spoke to bear tensions of 6-8 kN while maintaining the ability to buffer impacts through elastic deformation.
3Ease of manufacture
If traditional rigid spokes are used, then manufacturing simplicity is maintained, but frequent maintenance is required
Solution Approach 1:
The patent changes the material parameter from rigid to flexible textile fiber, which fundamentally improves the spoke's durability and impact resistance. This material change reduces the frequency of maintenance and repairs while the manufacturing process remains relatively simple, involving braiding fibers and attaching ends to the wheel components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The flexible textile fiber spokes can withstand higher tensions (6-8 kN) without deformation, improving safety, reducing maintenance, and maintaining structural integrity under impact, while being environmentally friendly and lightweight.
Implementation Method 1
The pressing opening is configured to form a closed compact structure by means of an adhesive and pressing of a machine platform
Implementation Method 2
each of the mounting holes is a tapered hole with an inner diameter increasing from inside to outside
Implementation Method 3
the outer diameter of each of the mounting heads is in fit with a maximum inner diameter of the mounting hole
Implementation Method 4
part of an impact force is cushioned due to the flexibility and strength margin of the spoke rope itself
Implementation Method 5
the textile fiber spoke rope can still be kept under an extreme impact force without irreversible deformation
Data Source
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AI summary
A rim spoke, comprising a spoke rope and nipples. Mounting heads are fixedly sleeved on both ends of the spoke rope; through mounting holes are formed in the nipples; the nipples are fixedly sleeved on the mounting heads by means of the mounting holes; the spoke rope is made of a textile fiber material; when the textile fiber spoke rope is subjected to a violent impact in a high tension state, due to the flexibility and strength margin of the spoke rope itself, part of an impact force is cushioned, so that the original characteristics of the spoke rope can still be kept under an extreme impact force, without irreversible deformation, thereby reducing the riding failure rate, ensuring the riding safety, reducing the daily maintenance requirement of a wheel, and reducing costs.